fdo#80918 - 'Find' should be 'Find Next' in the 'Find & Replace' dialog

Change-Id: I120525ee4a09e0ed091e44c37fb653f4b8c768e5
Reviewed-on: https://gerrit.libreoffice.org/12230
Reviewed-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>
Tested-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>